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公开(公告)号：US6042264A
公开(公告)日：2000-03-28
申请号：US976260
申请日：1997-11-21
CPC分类号： G01K3/04
摘要： A time-temperature indicator label for measuring the length of time to which a product has been exposed to a temperature above a pre-determined temperature is provided. The period of time of exposure is integrated with the temperature to which the indicator is exposed. The label is a composite of a plurality of layers adapted to be adhered at its underside to a product container. The label includes a printable surface layer, a longitudinal wicking strip that is adhered underneath the surface layer substantially at the opposite extremities only of the wicking strip and a lower substrate layer forming an envelope with said surface layer. A heat-fusible substance, which melts and flows above a pre-determined temperature, is applied on the surface of the wicking strip contiguous to at least one of the ends of the wicking member. When the heat-fusible substance is exposed to a temperature above the pre-determined temperature, the heat-fusible substance flows along the length of the wicking member. The label has a printable surface layer and is sealed at its peripheral edge to the peripheral edge of the substrate layer. These layers encapsulate the wicking member and the heat-fusible substance. The surface layer is provided with a sight window at an intermediate location over the wicking member through which the progress of flow on the wicking member is observed.
摘要翻译： 提供了用于测量产品暴露于高于预定温度的温度的时间长度的时间温度指示标签。 暴露的时间与指示剂暴露的温度相结合。 标签是适于在其下侧粘附到产品容器的多个层的复合材料。 标签包括可印刷表面层，纵向芯吸条，其基本上仅在芯吸条的相对末端粘附在表面层的下方，以及与所述表面层形成封套的下基材层。 熔化并流过预定温度的热熔物质被施加到与芯吸部件的至少一个端部相邻的芯吸条的表面上。 当热熔物质暴露于高于预定温度的温度时，热熔性物质沿芯吸部件的长度流动。 该标签具有可印刷的表面层，并且在其外围边缘处密封到基底层的周边边缘。 这些层包封芯吸部件和热熔性物质。 表面层在芯吸构件上方的中间位置处设置有视窗，通过该视觉窗观察芯吸构件上的流动进展。
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公开(公告)号：US4812053A
公开(公告)日：1989-03-14
申请号：US83752
申请日：1987-08-07
IPC分类号： G01K3/04
CPC分类号： G01N31/229 , G01K3/04 , Y10S252/962 , Y10S428/913
摘要： An activatable time-temperature indicator consists of an oxygen-sensitive reaction product of a triarylmethane dye and a decolorant that is coated on a substrate and covered by an oxygen barrier. Optinally, an oxygen-permeable layer is between the coating and the oxygen barrier. The indicator is activated by removing the oxygen barrier. Following this activation step, a progressive color development occurs at a rate that increases with temperature. The indicator is useful for monitoring the freshness of perishable products, particularly those stored at sub-ambient temperature.
摘要翻译： 可活化的时间 - 温度指示剂由三芳基甲烷染料的氧敏反应产物和涂覆在基材上并被氧屏障覆盖的脱色剂组成。 最佳地，透氧层位于涂层和氧气屏障之间。 通过去除氧气屏障来激活指示器。 在该活化步骤之后，以随温度升高的速度发生逐渐显色。 该指示剂可用于监测易腐产品的新鲜度，特别是在低于环境温度下储存的产品。
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公开(公告)号：US5709472A
公开(公告)日：1998-01-20
申请号：US546919
申请日：1995-10-23
CPC分类号： G01K3/04
摘要： A time-temperature indicator label for measuring the length of time to which a product has been exposed to a temperature above a pre-determined temperature is provided. The period of time of exposure is integrated with the temperature to which the indicator is exposed. The label is a composite of a plurality of layers adapted to be adhered at its underside to a product container. The label includes a printable surface layer, a longitudinal wicking strip that is adhered underneath the surface layer substantially at the opposite extremities only of the wicking strip and a lower substrate layer forming an envelope with said surface layer. A heat-fusible substance, which melts and flows above a pre-determined temperature, is applied on the surface of the wicking strip contiguous to at least one of the ends of the wicking member. When the heat-fusible substance is exposed to a temperature above the pre-determined temperature, the heat fusible substance flows along the length of the wicking member. The label has a printable surface layer and is sealed at its peripheral edge to the peripheral edge of the substrate layer. These layers encapsulate the wicking member and the heat-fusible substance. The surface layer is provided with a sight window at an intermediate location over the wicking member through which the progress of flow on the wicking member is observed.
摘要翻译： 提供了用于测量产品暴露于高于预定温度的温度的时间长度的时间温度指示标签。 暴露的时间与指示剂暴露的温度相结合。 标签是适于在其下侧粘附到产品容器的多个层的复合材料。 标签包括可印刷表面层，纵向芯吸条，其基本上仅在芯吸条的相对末端粘附在表面层的下方，以及与所述表面层形成封套的下基材层。 熔化并流过预定温度的热熔物质被施加到与芯吸部件的至少一个端部相邻的芯吸条的表面上。 当热熔物质暴露于高于预定温度的温度时，热熔物质沿芯吸部件的长度流动。 该标签具有可印刷的表面层，并且在其外围边缘处密封到基底层的周边边缘。 这些层包封芯吸部件和热熔性物质。 表面层在芯吸构件上方的中间位置处设置有视窗，通过该视觉窗观察芯吸构件上的流动进展。
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公开(公告)号：US4735745A
公开(公告)日：1988-04-05
申请号：US373955
申请日：1982-05-03
CPC分类号： G07C1/00 , G01N31/229 , Y10S252/962 , Y10S428/913
摘要： A new process is described which is useful for producing novel articles of manufacture useful for monitoring the time-temperature history of perishable items. The process initially involves forming a solution comprised of a diacetylenic monomer and a solvent. The solution is frozen, and the frozen solution having crystalline diacetylenic monomer therein is irradiated to partially polymerize the diacetylenic monomer. Partial polymerization of the crystalline diacetylenic monomer admixed with frozen solvent results in the production of a novel article of manufacture having color. The novel article of manufacture is comprised of frozen solvent, diacetylenic monomer, and colored polydiacetylene. Due to the intensity of the color of the polydiacetylene, the entire article of manufacture appears to be colored.The colored article of manufacture may be attached to various perishables to monitor the shelf life of the perishables. Upon exposure to temperatures above a critical temperature, the frozen solvent melts and extracts unreacted monomer from the colored polymer, thereby causing a sharp color transition which indicates that the perishable should possibly be discarded.
摘要翻译： 描述了一种新方法，其可用于生产可用于监测易腐物品的时间 - 温度历史的新型制品。 该方法最初涉及形成由二乙炔单体和溶剂组成的溶液。 将溶液冷冻，照射其中具有结晶二炔单体的冷冻溶液以部分聚合二乙炔单体。 与冷冻溶剂混合的结晶二乙炔单体的部分聚合导致生产具有颜色的新型制品。 新型制品由冷冻溶剂，二乙炔单体和着色聚二乙炔组成。 由于聚二乙炔颜色的强度，整个制品似乎是有色的。 有色制品可以附着在各种易腐食品上，以监测易腐品的保质期。 当暴露于高于临界温度的温度时，冷冻溶剂从着色聚合物中熔融并提取未反应的单体，从而引起明显的颜色转变，这表明易腐烂物可能被丢弃。
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公开(公告)号：US4892677A
公开(公告)日：1990-01-09
申请号：US683443
申请日：1984-12-19
CPC分类号： G07C1/00 , G01N31/229 , Y10S252/962 , Y10S428/913
摘要： A new process is described which is useful for producing novel articles of manufacture useful for monitoring the time-temperature history of perishable items. The process initially involves forming a solution comprised of a diacetylenic monomer and a solvent. The solution is frozen, and the frozen solution having crystalline diacetylenic monomer therein is irradiated to partially polymerize the diacetylenic monomer. Partial polymerization of the crystalline diacetylenic monomer admixed with frozen solvent results in the production of a novel article of manufacture having color. The novel article of manufacture is comprised of frozen solvent, diacetylenic monomer, and colored polydiacetylene. Due to the intensity of the color of the polydiacetylene, the entire article of manufacture appears to be colored.The colored article of manufacture may be attached to various perishables to monitor the shelf life of the perishables. upon exposure to temperatures above a critical temperature, the frozen solvent melts and extracts unreached monomer from the colored polymer, thereby causing a sharp color transition which indicates that the perishable should possibly be discarded.
摘要翻译： 描述了一种新方法，其可用于生产可用于监测易腐物品的时间 - 温度历史的新型制品。 该方法最初涉及形成由二乙炔单体和溶剂组成的溶液。 将溶液冷冻，照射其中具有结晶二炔单体的冷冻溶液以部分聚合二乙炔单体。 与冷冻溶剂混合的结晶二乙炔单体的部分聚合导致生产具有颜色的新型制品。 新型制品由冷冻溶剂，二乙炔单体和着色聚二乙炔组成。 由于聚二乙炔颜色的强度，整个制品似乎是有色的。 有色制品可以附着在各种易腐食品上，以监测易腐品的保质期。 在暴露于高于临界温度的温度下，冷冻的溶剂熔融并从着色聚合物中提取未接触的单体，从而引起明显的颜色转变，这表明易腐物质可能被丢弃。
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6.发明授权Acid complexed acetylenic compounds useful as environmental indicating materials 失效酸性络合的炔属化合物可用作环境指示材料
公开(公告)号：US4789637A
公开(公告)日：1988-12-06
申请号：US912713
申请日：1986-09-29
IPC分类号： G01N31/22 , G01N33/02 , C07C127/15 , G01K11/14
摘要： A family of acetylenic complexes especially useful as environmental indicators is provided. The complexes include at least one complexing acid and one acetylenic compound of the formula:[R--(C.tbd.C).sub.a --(CH.sub.2).sub.b --(C.tbd.C).sub.c ].sub.2.dHXwherein, a is 1 or 2; b is about 0-5; c is 0 or 1; d is above 0 to about 2, with the proviso that when a is 1, b and c are 0, and when a is 2, b is about 0-5 and c is 0 or 1; and R is --(CH.sub.2)n--NHC(O)NHR'; wherein n is an integer of about 1 to 10; and R' is selected from a group consisting of hydrogen, cycloalkyl, alkenyl, cycloalkenyl, aklyl, phenyl, alkoxyl, alkoxylcarbonylalkyl, and X is a complexing acid.
摘要翻译： 提供了特别用作环境指标的炔属复合物系列。 络合物包括至少一种络合酸和一个下式的炔属化合物：[R-（C 3 B）C - （CH 2）b - （C 3 F 3）C] 2 dHX其中a为1或2; b约为0-5; c为0或1; d大于0至约2，条件是当a为1时，b和c为0，当a为2时，b为约0-5，c为0或1; 并且R是 - （CH 2）n -NHC（O）NHR'; 其中n为约1至10的整数; 并且R'选自氢，环烷基，烯基，环烯基，烷基，苯基，烷氧基，烷氧基羰基烷基，X是络合酸。
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公开(公告)号：US4737463A
公开(公告)日：1988-04-12
申请号：US786407
申请日：1985-10-09
CPC分类号： G01N31/229 , Y10S436/905
摘要： A photoactivated time-temperature indicator is based on diacetylenic salts. A thermally unreactive ("inactive") diacetylenic salt (or a mixture of such salts) is mixed, in a polymeric matrix, with a material that generates acid upon exposure to light. Photoexcitation, preferably by UV or near UV light, causes the formation of a thermal reactive ("active") free diacetylenic acid. Following this activation step, a progressive color development occurs at a rate that increases with temperature. The indicator is useful for monitoring the freshness of perishable products, particularly those that require refrigeration.
摘要翻译： 光活化时间温度指示剂是基于二乙炔盐。 在聚合物基质中将热不反应（“无活性”）二乙炔盐（或这种盐的混合物）与暴露于光下产生酸的材料混合。 光激发，优选通过UV或近紫外光引起形成热反应性（“活性”）的二乙炔酸。 在该活化步骤之后，以随温度升高的速度发生逐渐显色。 该指标可用于监测易腐产品的新鲜度，特别是需要制冷的产品。
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公开(公告)号：US5057434A
公开(公告)日：1991-10-15
申请号：US400308
申请日：1989-08-29
申请人： Thaddeus Prusik , Raymond M. Arnold
发明人： Thaddeus Prusik , Raymond M. Arnold
CPC分类号： G01K3/04 , B65D79/02 , G01N31/229 , B65D2203/00 , Y10S252/962
摘要： An accurate monitoring of the conditions of a perishable product is achieved by integrating two indicator types - a primary indicator which develops a color change as a result of cumulative time-temperature exposure and a threshold second indicator - into a single device. The combination of the two indicators in the same indicator device provides a human readible signal that gradually and irreversibly develops color as a function of time and temperature and more closely monitors the actual condition of a deteriorative product than does a single indicator. Important features of this integrated monitoring device are reliability and printability. The primary indicator in the system is assisted in color development by the secondary indictor that is set to trigger at a predetermined temperature. When this temperature is reached or exceeded both indicator mechanisms function in an additive mode to cause a break in the typical Arrhenius curve, which a primary indicator alone produces. This can be used to signal actual rather than an apparent the end of a product life. The secondary indicia can be formulated to change very rapidly as would be needed to detect the thawing of a frozen product or modified so as to act more slowly, i.e. over at time-temperature range, and may comprise a substance that melts or changes some physical property at a given temperature.
摘要翻译： 通过将两个指示器类型（一个主要指示器，将累积时间温度暴露的颜色变化和阈值第二个指示器）集成到一个设备中来实现对易腐烂产品的状况的准确监控。 相同指示器中的两个指示器的组合提供了人类可读信号，其随着时间和温度的变化逐渐且不可逆地发展出颜色，并且更密切地监视劣化产品的实际状况，而不是单个指示器。 该集成监控设备的重要特性是可靠性和可打印性。 系统中的主要指示器被辅助指示器辅助，其被设定为在预定温度下触发。 当达到或超过这个温度时，两个指示器机制都以加法模式起作用，导致典型的Arrhenius曲线中断，这是主要指标单独产生的。 这可以用来表示实际的，而不是明显的产品寿命的终结。 辅助标记可以配制成非常迅速地改变，如需要检测冷冻产品的解冻或被修饰的，以便更慢地起作用，即在时间 - 温度范围内，并且可以包括熔化或改变一些物理的物质 在给定温度下的性质。
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公开(公告)号：US4917503A
公开(公告)日：1990-04-17
申请号：US103418
申请日：1987-09-30
CPC分类号： G01K3/04 , G01N31/229 , Y10S252/962 , Y10S436/905
摘要： A photoactivated time-temperature indicator is based on a leuco base system. A thermally insensitive, white ("inactive") leuco base (or a mixture of such leuco bases) is mixed, preferably in a polymeric matrix, with a material that generates acid upon exposure to light. Photoexcitation, preferably by UV or near UV light, causes the formation of a thermally sensitive, color-forming ("active") product. Following this activation step, a progressive color development occurs at a rate that increases with temperature. The indicator is useful for monitoring the freshness of perishable products, particularly those stored at subambient temperature.
摘要翻译： 光活化时间温度指示器基于无色基系统。 将热不敏感的白色（“无活性”）无色碱（或这种无色碱的混合物）与优选在聚合物基质中的混合物与在曝光时产生酸的材料混合。 优选通过UV或近紫外光的光激发导致形成热敏，成色（“活性”）产品。 在该活化步骤之后，以随温度升高的速度发生逐渐显色。 该指示剂可用于监测易腐产品的新鲜度，特别是在低温环境下储存的产品。
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10.发明授权Metal complexed acetylenic compounds useful as environmental indicating materials 失效金属络合的炔属化合物可用作环境指示材料
公开(公告)号：US4788151A
公开(公告)日：1988-11-29
申请号：US912711
申请日：1986-09-29
IPC分类号： C07C275/20 , C07C275/28 , C07F1/00 , C07F3/00 , C07F19/00 , G01N31/22 , G01K11/16 , C07C127/15
CPC分类号： C07C275/28 , C07C275/20 , C07F1/005 , C07F19/005 , C07F3/003 , G01N31/22 , G01N31/222
摘要： Acetylenic complexes are disclosed that are useful as environmental indicating materials whereby exposure thereof to environmental stimuli induces a color change. These complexes contain at least one effective complexing metal and at least one acetylenic compound of the general formula:[R--(C"C).sub.a --(CH.sub.2).sub.b --(C"C).sub.c ].sub.2.dHXWherein a is 1 or 2, b is about 0-5; c is 0 or 1; with the proviso that when a is 1, b and c are 0, when a is 2, b is about 0-5 and c is 0 or 1; and R is --(CH.sub.2).sub.n -NHC(O)NHR'; wherein n is an integer of about 1 to 10; and R' is selected from the group consisting of: (a) hydrogen; (b) cycloalkyl; (c) alkenyl; (d) cycloalkenyl; (e) alkyl; (f) phenyl; (g) alkoxy; (h) alkoxy alkyl; and (i) alkoxycarbonylalkyl.
摘要翻译： 公开了作为环境指示材料有用的乙炔配合物，由此其暴露于环境刺激物引起颜色变化。 这些络合物含有至少一种有效的络合金属和至少一种具有以下通式的炔属化合物：[R-（C“C）a-（CH 2）b - （C”C）c] 2.dHX其中a为1或 2，b约为0-5; c为0或1; 条件是当a为1时，b和c为0，当a为2时，b为约0-5，c为0或1; 并且R是 - （CH 2）n -NHC（O）NHR'; 其中n为约1至10的整数; 和R'选自：（a）氢; （b）环烷基; （c）烯基; （d）环烯基; （e）烷基; （f）苯基; （g）烷氧基; （h）烷氧基烷基; 和（i）烷氧基羰基烷基。
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